211.84.216.0/21

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Registry APNIC
ID CERNET-CN

WHOIS Details

inetnum:        211.84.0.0 - 211.85.255.255
netname:        CERNET-CN
descr:          China Education and Research Network
descr:          Wuhan Regional Network
country:        CN
admin-c:        JW1-CN
tech-c:         XL1-CN
tech-c:         SZ2-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-10-20T00:56:30Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Center,
address:        FIT-3-220, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
fax-no:         +86-10-62785933
e-mail:         abuse@cernet.edu.cn
abuse-mailbox:  abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by:         MAINT-CERNET-AP
last-modified:  2026-03-05T06:39:56Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Center,
address:        FIT-3-220, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
e-mail:         abuse@cernet.edu.cn
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        abuse@cernet.edu.cn was validated on 2026-03-05
abuse-mailbox:  abuse@cernet.edu.cn
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-05T06:40:20Z
source:         APNIC

person:         Jianping Wu
address:        China Education and Research Network Center
address:        Room 225, Main Building, Tsinghua University
address:        Beijing 100084
address:        CN
country:        CN
phone:          +86-10-6278-5983
fax-no:         +86-10-6278-5933
e-mail:         jianping@cernet.edu.cn
nic-hdl:        JW1-CN
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:25Z
source:         APNIC

person:         Shuang Zhu
address:        China Education and Research Network Information Center
address:        Room 225, Main Building, Tsinghua University
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-5931
fax-no:         +86-10-6278-5933
e-mail:         szhu@cernet.edu.cn
nic-hdl:        SZ2-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:36Z
source:         APNIC

person:         Xing Li
address:        China Education and Research Network Center
address:        Room 225, Main Building, Tsinghua University
address:        Beijing 100084
address:        CN
country:        CN
phone:          +86-10-6278-5983
fax-no:         +86-10-6278-5933
e-mail:         xing@cernet.edu.cn
nic-hdl:        XL1-CN
mnt-by:         MAINT-CERNET-AP
last-modified:  2011-12-22T05:14:25Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 211.84.0.0/16

No nearby ranges found.

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

3 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
211.84.223.1 AS4538 China Education and Research Network Center 16.37ms from Beijing, CN

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
84.84.202.37 AS1136 KPN B.V. 2.83ms from Amsterdam, NL
172.212.109.229 AS8075 Microsoft Corporation 0.69ms from Ashburn, US
122.137.250.133 AS4837 CHINA UNICOM China169 Backbone 2.35ms from Changchun, CN
184.17.199.117 AS5650 Frontier Communications of America, Inc. 5.54ms from Chicago, US
65.186.55.101 AS10796 Charter Communications Inc 11.86ms from Cleveland, US
73.78.56.5 AS7922 Comcast Cable Communications, LLC 2.59ms from Denver, US
95.135.156.101 AS39855 Mod Mission Critical LLC 0.20ms from Frankfurt am Main, DE
213.114.214.21 AS8434 Telenor Sverige AB 1.07ms from Goeteborg, SE
135.196.14.117 AS3257 GTT Communications Inc. 0.63ms from London, GB
40.81.140.21 AS8075 Microsoft Corporation 0.29ms from London, GB
47.156.195.229 AS5650 Frontier Communications of America, Inc. 3.29ms from Los Angeles, US
68.85.45.149 AS7922 Comcast Cable Communications, LLC 14.69ms from Reston, US
189.44.138.181 AS10429 TELEFÔNICA BRASIL S.A 0.63ms from Sao Paulo, BR
116.233.101.117 AS4812 China Telecom (Group) 6.09ms from Shanghai, CN
52.187.165.213 AS8075 Microsoft Corporation 0.48ms from Singapore, SG
54.206.89.53 AS16509 Amazon.com, Inc. 0.17ms from Sydney, AU
45.135.120.117 AS56630 Melbikomas UAB 0.48ms from Amsterdam, NL
149.97.237.69 AS15830 Equinix (EMEA) Acquisition Enterprises B.V. 0.42ms from Atlanta, US
116.117.31.213 AS4837 CHINA UNICOM China169 Backbone 3.40ms from Beijing, CN
5.231.187.149 AS12360 KEVAG Telekom GmbH 6.32ms from Frankfurt am Main, DE
109.251.222.5 AS31148 FREENET JSC 0.95ms from Kyiv, UA
15.254.33.85 AS16509 Amazon.com, Inc. 1.17ms from Los Angeles, US
27.196.50.229 AS4837 CHINA UNICOM China169 Backbone 8.73ms from Qingdao, CN
156.235.102.149 AS402169 Uscloud Inc 0.73ms from San Jose, US
191.55.156.245 AS53006 ALGAR TELECOM S/A 8.33ms from Uberlandia, BR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -f5 -m12 211.84.218.185
traceroute to 211.84.218.185 (211.84.218.185): 12 hops max, 52 byte packets
7 [AS58453] 223.119.80.73 95.947 ms
8 *
9 [AS4538] 101.4.114.181 222.068 ms
10 *
11 *
12 *
Measurement taken from IPinfo ProbeNet in Dushanbe, TJ
On

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